Wagon-axle



(N70 Model.)

- O. F. MILBURN.

WAGON AXLE. D No. 493,039. v Patented Mar. '7, 1893.

K629266368. fmmnibr. /Z% WW M fa/ZM Atlorrwj JNiTE ATES CHARLES F.MILBURN, OF TOLEDO, OHIO.

WAGON-AXLE.

SPECIFICATION forming part of Letters Patent No. 493,039, dated March'7, 1893.

Application filed June 27,1892. Serial No. 438,082- (No modelm To allwhom it may concern.-

Be it known that 1, CHARLES F. MILBURN, of Toledo, county of Lucas, andState of Ohio, have invented certain new and useful Improvements inWagon-Axles; and I do hereby declare that the following is afull, clear,and exact description of the invention, which will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form part of this specification.

My invention relates to wagon axles of that character in which thimbleskeins are em ployed and has for its object to provide a truss bar,which shall support and strengthen both the axle and skein at the pointsrespectively where the. greatest liability of breakage occurs.

A further object is to combine with a truss bar for the axle and skein,means for securing the skein upon the axle thereby dispensing with theuse of the lag-screw usually employed.

Theinvention consists in the parts and combination of parts hereinafterdescribed and pointed out in the claim.

In the drawings: Figure 1 is a side elevation of one end of an axleprovided with my invention the position of the truss bar being indicatedin dotted lines. Fig. 2 is a bottom plan view. Fig. 3 is a longitudinalvertical section with the front half removed to more clearly disclosethe position of the bar. Fig. 4 isa bottom plan view showing the innerend of the bar twisted at right angles to the body portion.

As is well known, the breakage in wagon axles occurs either at theshoulder 09-00 of' the skein, or at the point y-y of the wooden portionof the axle. It is my object to strengthen the parts at these points bymeans of a truss bar extending from the brace bolt to entirely throughthe skein, whereby the arm of the axle is strengthened, and the skeinsustained with greater rigidity than heretofore.

1 designates the wooden axle formed with the arm 2 in the usual manner,the arm and axle being. grooved or bored longitudinally from the end ofthe arm to the brace bolt, in order to receive the truss bar 3, which istightly embedded within the wood so that the outer edge lies flush withthe outer edge of the arm and forms a bearing for the skein. Bar 3 is ofalength to reach from the outer end of the skein, at which point it isreduced to a diameter to pass through the hole in the outer end of theskein, and screw threaded to receive a nut 4, the opposite end extendingto the brace bolt 5 of the axle and formed with an opening 6 to receivethe bolt.

In Figs. 1, 2, and 3, the opening 6 is formed by bending the bar incircular form flatwise, so that the bar occupies arecess of like depththroughout its length while in Fig. 4 the end of the bar is turned atright angles to the body portion, and the opening 6 is either formed bypunching or drilling.

It will be seen that I have provided a metal support for the skein andaxle that effectually avoids a breakage, and at the same time forms asecure fastening for the skein, and dispenses with the usual lag screw.It will also be observed that I use a comparatively flat and thin trussbar, and arrange the same upon its narrow edge, this enables me tostrengthen the skein and axle without adding a great deal of weight tothe vehicle or wasting any material.

What I claim is v The combination with the wagon axle and skein, of ashort narrow truss bar, threaded at the outer end and provided with aneye at its inner end, said truss bar being seated in ,a groove in theunderside of the angle and extending through the skein, the nut upontheouter end and the bolt for securing the inner end to the axle.

In testimony that I claim the foregoing as myown I hereby affix mysignature in prespresence of two witnesses.

CHARLES F. MILBURN.

